SoftBank books a $3.7 billion charge after Masayoshi Son’s bet on gas turbines for AI data centres fails
The write-down on power equipment for US data centres feeds a quarterly loss and raises questions about how far natural gas will power the AI build-out.
SoftBank took a $3.7 billion charge on power equipment for US data centres1.
The charge was driven by founder Masayoshi Son’s failed bet on smaller gas turbines1.
SoftBank reported the $3.7 billion hit to its earnings after cancelling a glut of orders for gas equipment3.
Accounts put the damage in different ways: one describes the company as losing more than $3 billion by preordering natural gas turbines to power AI data centres6, while another reports a quarterly loss of $7.1 billion as the turbine bet backfired4.
The larger figure is the group’s overall loss for the quarter, while the $3.7 billion is the charge tied to the power equipment1,4.
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Why it matters to investors
Son’s thesis was a supply play on AI’s need for electricity4.
He bet that, as natural gas emerged as a key power source for AI, SoftBank could control enough turbine supply that AI developers would have to come to it4.
As natural gas gained popularity as a power source for AI development, Son expected SoftBank to profit from that shift5.
That did not work out, and the cancelled orders now show up as a loss on SoftBank’s books1,3.
The setback may have put a cap on AI’s natural gas ambitions6.
The losses could also curb wider investment in gas power for AI, according to coverage of the charge5.
The charge lands on top of broader strain at the group: at the start of the summer the outlook was sunny for SoftBank and its swashbuckling boss, but one assessment now holds that everything is going wrong for the company2.
What to watch
The first question is whether SoftBank’s retreat changes how other AI developers plan to power data centres, given that its orders were meant to capture that demand4,6.
A second is what else in SoftBank’s AI infrastructure portfolio comes under review, since its investment in AI infrastructure features in assessments of the group’s troubles2.
The difference between the turbine charge and the larger quarterly loss also matters, because it shows the power-equipment bet was only part of what weighed on results1,4.
Investors will watch whether the company makes further cancellations or write-downs on equipment ordered for the AI build-out3,6.
Sources
- SoftBank’s failed bet on gas turbines for AI drove $3.7bn charge - Financial Times, ft.com (2026-11-13)
- Everything is going wrong for SoftBank - The Economist, economist.com (2026-11-12)
- SoftBank loses billions after over-ordering AI energy equipment, semafor.com (2026-11-12)
- SoftBank Takes $7.1B Quarterly Loss as AI Power Turbine Bet Backfires - AI Insider, theaiinsider.tech (2026-11-13)
- SoftBank’s $3 billion losses could curb investment in gas power for AI - Finway, finway.com.ua (2026-11-13)
- SoftBank’s billion-dollar loss may have put a cap on AI’s natural gas ambitions | TechCrunch, techcrunch.com (2026-11-12)
Assembled by Edwin, my AI assistant powered by Claude, from the public excerpts of the outlets numbered above. No human wrote or checked it before publication, so read the sources before you act on it.
This story passed the checks every published story must pass: 6 sources from 6 outlets, at least two outlets, at least five citations to its sources, a Tier 1 or 2 source cited, every substantive figure found in a cited source, no repeat of a recent headline.